Coupling



e. ZINT.

COUPLING.

APPLICATION man APR. 12, 1915.

.Patented Aug, 8, 1916.

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'NTTFD STATES FATFN T FFTQE;

GEORGE ZINT, OF WAPAKONETA, OHIO.

COUPLING.

Application filed April 12, 1915.

T0 all l1li/tom t may concern Be it known that I, GEORGE ZrN'r, a citizen of the United States, residing at vWapakoneta, in the county or" Auglaize and State of Ohio, have invented certain new and useful Improvements in Couplings; and I do declare the following to be a full, clear, and

exact description of the invention, such as will enable others skilled in the art to which it appert-ains to make and use the same.

This invention relates to improvements in couplings especially adapted for use in connection with automatic sprinklers and more particularly to the sprinkler shown in my Patent Number 1,146,228 dated July 13, 1915.

The object of the invention is to providel is a longitudinal vertical section taken.

through a nozzle and the pipe with which it is connected showing this improved coupling applied; Fig. 2 is a transverse vertical section taken on the line 2-2 of Fig. 1; Fig. 3 is a detail perspective view of the nozzle detached.

In the embodiment' illustrated a table 5 .is shown revolubly mounted on a casting 6. This table 5 is mounted similarly to the bracket 17 in the patent above referred t'o and is adapted to be revolved by means similar to that shown in said patent, comprising a large worm gear l5 actuated by means not shown, so that when said worm gear is turned the table 5 and all of the parts carried thereby are revolved. This casting 6 'as here shown, has a laterally extending tubular arm l() provided at its outer' end with an upward extension 11 which terminates in a laterally extending socket l2, said socket being here shown arranged parallel with the arm 10 and in a plane above it.

The casting 6 which carries the nozzle 9, is held against turning relatively to the table 5 by means of a socket 13 depending :trom the lower face of the arm 10 and positioned to removably engage the upper end or' a post la which is xed to and extends Specification of Letters Patent.

Patented Aug. 8, 1916.

Serial No. 20,898.

upwardly from said table at a suitable point to engage the socket 13. The socket or female member 12 of the coupling is externally threaded and is provided on its inner face at a point spaced inwardly from its free end, with an annular shoulder or flange 15 having a notch 16 formed therein for a purpose now to be described.

The nozzle 9, which is connected with the socket 12, has a tubular extension or male member 17 which is provided with a laterally extending lug 1S of a width slightly less than the width of the notch 16 in the iange 15, to provide for the ready passage of this lug through said notch when the parts are assembled. As shown, this tubular extension has a shoulder 19 at its inner end or base which is designed to abut against the outer face of the flange 15 when the parts are assembled to limit the inward insertion of the nozzle in the socket. The larger cylindrical shank portion of the nozzle terminates at its inner or rear end, in a shoulder 21 against which a clamping nut 22 is designed to abut when the parts are assembled and the nozzle held in adjusted position by said nut. This adjustable locking and packing nut 22 is internally threaded and of a size to tit the. threaded outer face of the socket 12, said internally threaded bore of said nut terminating about midway the ends of the nut and having an annular shoulder at its inner end, which is designed as a stop for limiting the inward movement of said nut on said socket 12, the bore of the shouldered portion thereof being unthreaded and corresponding in diameter to the internal diameter of the sockety 12 to permit the nozzle 9 to be readily inserted through said nut into said socket while the nut is already in engagement with the socket. The unthreaded shouldered portion of the nut 22 as shown is formed by the insertion in the nut ot a suitable packing 23 to insure a water tight connection of said nut with the nozzle. This packing 23 is arranged between an inturned annular flange 23 formed on the outer end of the nut and the inner end of the threaded portion of said nut.

The larger portion of the male member 17 at the rear of the shoulder 21 thereof, corresponds in diameter to the diameter of the unthreaded portion of the nut and of the socket 12, or is slightly less in diameter so as to provide for its insertion in said memsprinkler.

bers and its ready turning therein when it has been so inserted. Any suitable packing means may be provided between the nut 22', the socket 12, and nozzle 9, to form a water tight connection between these parts to prevent leaking during the operation of the A' coiled spring 12 is shown mounted in the member 12 between a shoulder 12EL and the rear end of the member 17 and exerts its tension to assist in holding the nozzle yieldably in liXed position.

In the use of this improved coupling, it is obvious that any form of nozzle may be employed in connection with the socket 12 provided the stem or shank of said nozzle be equipped with the lug 18 and the shoulders 19 and 21 above described, and to assemble the nozzle or connection with the socket 12, the lug 18 carried by the stem or shank of the nozzle must be placed in alinemcnt with the notch 16 in the flange 15 of Said socket, so that when said nozzle is moved inwardly this lug will pass through the notch 16 to the rear face of the flange 15 and on the turning of said nozzle shank this lug will engage the rear face of the flange 15 and thus lock the nozzle against removal until the lug is again brought into register with the notch 1G. 1t will thus be obvious that when this nozzle is so connected that the shank thereof may rotate freely in the socket 12 and swing in a vertical plane when the parts are positioned as shown in the accompanying drawings, said nozzle swinging laterally relative to the socket 12, no matter in what position it may be placed. lVhen the nozzle has been positioned as desired, it is held in adjusted position by turning the nut 22 outward until it abuts against the shoulder at the base or inner end of the nozzle shank, and the continued outward turning of said nut forces the nozzle away from the socket 12 causing the lug 18 thereof to bindingly engage the inner face of the flange 15 and thus securely lock the nozzle 9 in adjusted position relatively to the socket 12. It will thus be seen that the position of this nozzle 9 may be changed when 'desired so as to vary the sprinkling of the water discharged therefrom.

I claim as my invention A coupling comprising a socket member Copies of this patent may be obtained for five cents each, by addressing' the Commissioner of Patents;

with its terminal exteriorly threaded, an anspring supporting seat, a cooperating male Y member having a reduced free end to ex- ,tend through the shouldered portion of the socket member and having an external shoulder formed at the base of said reduced portion and adapted for abutting engagement with the shoulder of the socket member, the body portion of said male member at the rear of its shoulder fitting'within the socket member in advance of the shoulder thereof, an annular flange formed on said male member at a point spaced rearwardly from its shoulder, a laterally extending lug on the reduced portion of said male member for insertion through a notch in the shoulder of the socket member, an adjustable internally threaded locking and packing nut of a size to t the threaded outer end of the socket member, the threads of said nut terminating about midway the ends thereof, a shoulder extending laterally inward from said nut at the inner end of the threaded portion thereof to form a stop for engaging the end of the threaded portion of the socket member for limiting the inward movement of said nut on said socket member, the bore of said nut beyond the shoulder thereof being unthreaded and corresponding in diameter to the internal diameter of the socket member to permit the body portion of the male member to be readily inserted therethrough and to enter the socket member while the nut is in engagement therewith, and a coil spring mounted on the seat in said socket member between it and the free end of the male member. Y

In testimony whereof l have hereunto set my hand in presence of two subscribing witnesses.

GEORGE ziN'r.

Witnesses LEWIS S'roU'r, HELEN HOUSE.

Washington, D. C. 

